Savings gum

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Saving gum on a stamp of the Soviet occupation zone

Spargummierung or shortly saving rubber is a special type of rubber coating of stamps .

Economical gum was mainly used in times of economic hardship to save the scarce raw materials needed for gumming. The gumming was not applied over the entire area, but parts of the reverse side of the stamp sheets were left ungummed.

These sheets and stamps are viewed as special features by philatelists and are shown as an object for display with the back facing forward in collections.

Uses of the savings gum are known from Germany from the time shortly after the Second World War , a similar phenomenon also from Austria in the same epoch.

Germany

For some stamp issues and miniature sheets for the Soviet zone of occupation in Germany shortly after the Second World War, a partial edition was made with savings gum. This can be found especially with the issues of the OPD (Oberpostdirektion) Erfurt .

In the case of German savings gumming, a perforated template was placed between the stamp sheet and the gumming machine. As a result, the stamps were only gummed in dots where the holes in the template were, and up to 50% of the rubber raw material was saved.

Austria

"Spargummi" at the value of 30 groschen of the Austrian landscape edition 1945

A rubber coating similar to the savings gum can be found, for example, on some values ​​of the Austrian Second Landscape Issue from 1945. This was the first stamp issue in Austria that was valid throughout the country after the Second World War.

In contrast to some German stamp issues, in which an attempt was made to save raw material, this is a more or less strongly “speckled” rubber that occurs with individual values. This phenomenon is caused by low temperatures during manufacture. The rubber, the dextrol, therefore partially coagulated during production and could therefore not be applied over the entire area. As a result, small areas of this so-called Austrian spar gum lining remained ungummed. So here no attempt was made to save raw material (dextrol), but it is a production-related deficiency symptom that can be traced back to the lack of heating material.

Other special types of gumming

proof

  1. ^ Gindl: Special catalog Austria 2nd Republic - The landscape series 1945/47 , published by the special interest group of Austria's special collectors